header {
    width: 100%;
    height: 20rem;
    overflow: hidden;
    background: url("https://cube.elemecdn.com/0/52/18e9c0ca5c064739c9ce053a73b8apng.png?x-oss-process=image/resize,m_lfit,w_1125,h_720/quality,q_90") no-repeat 100% 100%;
    filter: grayscale(.3);
    background-size: contain contain;
    background-size: 100% 100%;
}

header p {
    margin-top: 3rem;
    height: 4rem;
    /* background-color: aqua; */
}

header p img {
    width: 4rem;
    border-radius: 50%;
    vertical-align: -1rem;
}

header p b {
    display: inline-block;
    line-height: 4rem;
    font-size: 1.8rem;
    margin-left: 1rem;
    color: #fff;
}

.header-box {
    height: 3rem;
    width: 100%;
    margin-top: 2rem;
    /* background-color: rgba(127, 255, 212, 0.397); */
    padding-top: 1.5rem;
    color: #fff;
    position: absolute;
    left: 0;
    top: 5rem;
}

.header-box-position {
    background-color: #fff;
    color: black;
    position: fixed;
    top: -3rem;
    /* top: 0; */
    left: 0;
    z-index: 10;
}

.header-box span {
    width: 3rem;
    font-size: 1.4rem;
    margin-left: 2rem;
}

.dian::after {
    content: "___";
    position: relative;
    left: -2.5rem;
    top: 1rem;
}

.two {
    width: 28rem;
    height: 15rem;
    position: absolute;
    top: 12rem;
    left: 1rem;
    background-color: #fff;
}

.two div {
    margin: .5rem 0 .5rem;
}

.two .two-top {
    height: 4rem;
    margin-top: 0;
    background-color: chartreuse;
    text-align: center;
    color: #fff;
    font-size: 1.5rem;
    line-height: 4rem;
}

.two-top2 {
    font-size: .9rem;
    padding-left: 1rem;
}

.two .two-top3 {
    margin-left: 2rem;
    width: 15rem;
    height: 4rem;
    padding-left: 1rem;
    box-sizing: border-box;
    background: url("https://img.alicdn.com/tfs/TB1gbK8eoGF3KVjSZFvXXb_nXXa-483-96.png");
    font-size: 1.5rem;
    line-height: 4rem;
}

.two-top3 span {
    margin-left: 2rem;
    font-size: 1.5rem;
}

.two-top4 span {
    color: salmon;
    margin-left: 1rem;
    border: .0625rem solid salmon;
    padding: .2rem .5rem;
}

.two-top5 {
    padding-left: 1rem;
    color: silver;
}

.h-box {
    height: 7rem;
    background-color: #fff;
}